ISL62391 Datasheet, PDF (2/20 Pages) Intersil Corporation – High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers

ISL62391, ISL62392
Absolute Maximum Ratings
VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC, PGOOD, PVCC to GND . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
EN_{1, 2}, LDO3EN . . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC +0.3V
VOUT_1,2, FB_1,2, FSET_1,2 . . . . . . . . . . . . -0.3V to GND, VCC +0.3V
PHASE_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_1,2 to PHASE_1,2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UGATE_1,2 . . . . . . . . . . . . (DC) -0.3V to PHASE_1,2, BOOT_1,2 +0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LGATE_1,2 . . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, PVCC +0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
LDO3 Current (Internal Regulator) Continuous . . . . . . . . . +100mA
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ_JA (°C/W) θ_JC (°C/W)
TQFN Package . . . . . . . . . . . . . . . . . .
37
3.5
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C
Operating Temp. Range (ISL62391(2)IRTZ) . . . . . .-40°C to +100°C
Operating Temp. Range (ISL62391(2)HRTZ) . . . . .-10°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range (ISL62391(2)IRTZ) . .-40°C to +100°C
Ambient Temperature Range (ISL62391(2)HRTZ) .-10°C to +100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 5.5V to 25V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θ_JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Circuit of Figure 1 and Figure 2, LDO3, OUT1, OUT2, and REF, VIN = 12V, EN = VCC, T_A = -40°C to +100°C,
unless otherwise noted. Typical values are at T_A = +25°C. Parameters with MIN and/or MAX limits are 100%
tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not
production tested.
PARAMETER
CONDITIONS
MIN
TYP MAX UNITS
LINEAR REGULATOR
VIN Power-on Reset
Rising Threshold
5.3
5.4
5.5
V
Hysteresis
20
80
150
mV
VIN Shutdown Supply Current
EN1 = EN2 = LDO3EN = 0
6
15
µA
VIN Standby Supply Current
EN1 = EN2 = 0, LDO3EN = 1
150
250
µA
LDO3 Output Voltage
I_LDO3 = 100mA (Note 3)
3.25
3.3
3.35
V
I_LDO3 = 0mA
3.25
3.3
3.35
V
LDO3 Short-Circuit Current
LDO3 = GND (Note 3)
180
mA
LDO3EN Input Voltage
Rising edge
1.1
2.5
V
Falling edge
0.94
1.06
V
LDO3EN Input Leakage Current
LDO3EN = 0 or VCC
-1
1
µA
LDO3 Discharge ON-resistance
LDO3EN = 0
36
60
Ω
PVCC POR Threshold (Note 3)
4.2
V
SMPS2 to PVCC Switchover Threshold
4.63
4.8
4.93
V
SMPS2 to PVCC Switchover Resistance (Note 3) VOUT2 to PVCC, VOUT2 = 5V
2.5
3.2
Ω
MAIN SMPS CONTROLLERS
VCC Input Bias Current
EN1 = EN2 = 1, FB1 = FB2 = 0.65V
2
mA
VCC POR Threshold
Rising Edge
4.33 4.50 4.55
V
Rising Edge (ISL62391(2)HRTZ, T_A = -10°C to
+100°C)
4.35 4.50 4.55
V
Falling Edge
4.08 4.20 4.30
V
Falling Edge (ISL62391(2)HRTZ, T_A = -10°C to
4.10 4.20 4.30
V
+100°C)
Reference Voltage
0.6
V
Regulation Accuracy
VOUT regulated to 0.6V
-1
1
%
2
FN6666.4
December 22, 2008